Battery charger



FIG. 1 is a front view of a battery charger showing my new design;

FIG. 2 is a rear view of the battery charger;

FIG. 3 is a left side view of the battery charger, a right side view being a mirror image thereof;

FIG. 4 is a top view of the battery charger, a bottom view being a mirror image thereof; and,

FIG. 5 is a top front side perspective view of the battery charger. 

CLAIM The ornamental design for a battery charger, as shown and described. 